Paper folding box



March 4, 1924.

s. BERGSTEIN PAPER FOLDING- BOX Filed March 23. 1.922

Patented Mae a, rare, ggg ggg entree snares earner cornice.

WUEL BEN, F DLETOWN, OHIO, ASSIGNOR T0 THE 1311::

ENG X COMPANY, OF MIDDLETOWN, OHIO.

PM FNLDING 36X.

Applieation and March as, 1922. serial Etc. 548,019.

To all whom it my camera: The novel features of my improved box Be it known that T, SAMUEL BEResTnrN, are illustrated in the accompanying drawa citizen of the United States, residing at ings,the principle of the invention and Middletown, in the county of Butler and specific features of construction and ar- State of Ohio, have invented certain new rangement'being definedin the appended and useful llmprovements in Paper Folding claims. Boxes and the like, of which the following In the'drawin is a specification, reference being had there- Figs. 1 and 2 illustrate the blanks for the W in to the accompanying drawings. bottom and top units respectively of the box, This invention relates to improvements in opened out, and slotted and scored for foldpaper folding boxes,-having particular ing; reference to paper folding boxes of the Fig. 3 illustrates the first step of folding knockdown type. the. blank "shown in'Fig. 1; F

The main object of my invention is to Fig. 4 illustrates the final fold of the efiect better construction and, at the same blank shown in Fig. l; time, cheaper production of paper boxes of Fig. 5 illustrates ithe final fold of the this character than is being realized by the blank shown in Fig.2, and present general practice. Fig. 6 illustrates the assembly of the two W To this end the improved box of the pres-' units. Y ent invention, is designed to minimizewaste {is here shown, both bla A and ld of material; to produce a box of relatively are slotted at each corner on dia onal lines greater stren h; and for production on an -l,blank -A representing the bottom automatic paper box folding machine havand blank the top unit for the'box. In W) ing far greater output at a given cost of opthe first forming operation of blank A, the eration than has been possible heretofore by portions a are folded on diagonal lines -2, the best known practices in this art. Asuitas illustrated in Fig. 3,-the folds being able automatic apparatus for manufacturing made flat to the" face of the blank. Correthe boxes forms the subject matter of a cosponding folds are made of portions -6 on 841 ending application for Letters Patentlines 3 of blank lB,-this operation, not 0 gerial No. 546,044, filed March 23, 1922. illustrated in the drawings, belng the same The improved box, as herein illustrated as thatillustrated in Fig. 3 except that the and described distinguishes from the present folds are made from the opposite end edges, hown practice of paper folding box makas distinguished from the folds of bla A at ing in the manner of effecting the folds of which are made from the opposite side edges 5 the box, and the manner of joining coacting of the blank. 1

portions of the folds one with another,a The finalfolds of blanks A and -B are complete'unit of the box, joined and folded illustrated 1n F1 s. 4. and 5, and consist in ready for distribution, being produced by a folding mar na portions 0 and d, on an single series of successive operations of one lines 4 an 5, over folded portions a machine, as distinguished from the heretoand h of the IQSEBCUVG blanks. Thus the fore coon practice in this art of alters de edges 6 of t e oppos te marginal pornate machine and hand operations required tlons c of blank will be brought to to produce folding boxes of this general register with the ahgnededges -7 of the ca character. The separate units for the top two ad acent folded portlons a, and the and bottom of the box, as delivered from the dia onally-cut edges to register with the folding machine, are immediately ready for fol ing l1nes -2. Tn like manner, in makassembling one with the other, as required in ing the correspond ng folds of blank B, boxes made by the common practice-thus the side edges 9 Wlll be brouht to register 31th the improved boxes of the present invention with edges -1Q, which will lo aligned in are far more convenient for handling as used folding of portions h "and the diagonal by the trade, than ordinary boxes of the edges -11 w th the folding lines 3. Thus usual ta, the everlappiug portions e of bl tion folded inwardly til a the triangle turned inwardly toward the till . iacent trian shaped portions -.a in -t. -r of an -n will have double thiclmess of material and all the corners of both units of the hon, will have double strength,

Before the final folds are made on hlanks A. and -lB, the portions e and -f are supplied with a suitable adhesive, as glue,

accordingly,

a cent, etc.,this being a feature of oeration of the autotic hon folding inahit to which reference has heen made herein;

lit is this feature of corner construction that gives particular novelty and outstandi merit to the present invention. It will he ohserved that'each corner of both hon units is reinforced hy'douhle thickness of trialar-shaped portions of paper, ,the hase of thetriangle heing at the open side, and the apen of the triangle intersecting the corner on the closed side of the hon unit, as the same is opened or knock-down form illustrated This feature of corner construction, taken together with the further characteristic of adhesive junctureshetween the overla p portions, results in ,a lmock-down fo ding hon of outstanding nierit, having particular reference to cheapness of production, syetrical outline, and strength and durahility in the assernhled units of the hon. As will he ohserved in Fig, 6, in the assemhly of the top and hot'tom its of the hon, all corners will have quadruple strength, of material,heing further greatl strengthened hy the triangular shapes'o the adhering, overla ping portions.

Having in Figs. 4: and

escrihed my invention, ll claim:

1. ]ln a folding hon, including in cornhination with a 'hlank for forming a unit of the hon, a diagonal slot formed in each cornor of said hla, a triangular-shaped porover the face of the hlank, adjacent each slot on a line suhstantially at right-angles thereto, a marginal portion of the hlank folded over each two adjacent triaar-sha d portions, wherehy the hon is reinforce by said triangularshaped portions of material, one ortion overlapping the other equally on hot sides of each corner of the hon w1th the apen of closed side of the hon unit.

2. In a folding hon, including in coinhination with a hlank for forming a unit of the hon, a diagonal slot formed in each corner of said hla, a trianar-shaped portion folded inwardly over the face of the hlanlr, adjacent each slot on a line suhstantially at right-ass thereto, a marginal portion of the hlai folded ona line parallel to an edge of said margin over each two adar-shaed portions, wherehy the hon is d hy said triangularof terial, one ortion other equally on hot sides overlapping the hy said triangular-shaped unfolded from the u hottom of said hon, a diagona n nsense of each corner of the hon. with the apen of the triangle turned inwardly toward the closed side of the hon unit,

. 3. lln a folding hon, including in combination with a hlank for forming a unit 0 the hon, a diagonal slot formed in each corner of said hlank, a triangular-shaped portion folded inwardly over the face of the. hlank, adjacent each slot on a line substantially at ri ht-angles thereto, a maral portion of to hlanl: folded on a line paralel to the edge of said mar over each two adjacent triangular-shaped portions with said edgehrought to register with aligned edges thereof, whereby-the hon is reinforced portions of material, one, portion overlapping the other equally on hoth sides of each corner of the hon with the a en of the triangle turned in wary towar the closed side of the hon nit v t. lo a folding hon, including in co nhi- "Eli fill

nation with a hlank for, fog a unit of the hon, a diagonal slot formed in each cornor of said hl'ank, atrian ar-shaped portion foldedinwardly over the face of the hlank, adjacent each slot on a line suhstantially at rightvangles thereto, a marginal ortion of the hlank folded on a line paralel to the side edge of said margin over each two adjacent triangular-shaped portions,

with said edge hrou ht to aligned edges thereo and edges of said mar 'ual register with the olding angular-shaped portions, reinforced hy said triangular-shaped portions of material, one portion overla ping the other equally on hoth sides of eac corner of the hon with the apex of the triangle turned inwardly toward the closed side of the hon unit. I v

5. In a folding hon, including in comhination with a blank for formin a unit of the hon, a diagonal slot formed in each corner of said hi nk, a triangular-shaped portion folded inwardly over the face of the blank, adjacent each slot on a line substantially at-right-angles thereto;-- a marginal portion of the hlank folded over each two adjacent trian 1 base line of eac trianar-shaped portlon heing brought to register with an edge line, and the apen of each triangular-shaped portion being on the folding line of the coactiug marginal portion, wherehy the hon is reinforced hy said triangular-shaped portions of material, one ortion overlapping the other equally on hot sides of eac corner of the hon withrthe a en of the triangle turned inwardly tower the closed side of the hon unit.

8. ln a folg hon, including in comhination, two hlanfks for fo the top and slot formw register with the dia onal lines of said triportion'hroug t to wherehy the hon is are of said blanks, a triangularshaped portion folded inwardly face of one of said blanks ad acent each slot therein on opposite sides thereof, and 5 corresponding folds of the other of said blanks on opposite ends thereof, a marginal portion of each blank folded over-each two adjacent triangular-shaped portions, wherein each corner over the by the box is reinforced by said triangularshaped portions of material, one portion m overlapplng the other equally on both sides of each corner of the box with the apex of the triangle turned inwardly toward the closed side of the box unit.

In testimony whereof, I aflix m signature.

t W I STEIN. 

